Tech thinker Anil Dash gets "uncharacteristically nerdy" and breaks down the process he used to install Windows 7 in Boot Camp—and then get access to it from OS X, without rebooting, using the free virtualization software VirtualBox.

This isn't installing Windows 7 by itself into a new VirtualBox image/appliance—it's taking the hard disk installation made with Boot Camp and making it accessible from VirtualBox in OS X. It's only two terminal commands on top of the standard VirtualBox setup and startup, and it's a pretty handy tool for quickly opening a Windows 7 program you need or testing out a web site in a Windows-only browser. Hit the link for Dash's quick run-through, and tell us if you've got any additional VirtualBox-on-Mac tips in the comments.